Home / 320,435.60-479,997.30-162,752.90

Finding the Fourth Proportional to 320,435.60, 479,997.30 and 162,752.90

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Solution

The fourth proportional to 320,435.60, 479,997.30 and 162,752.90 is: 243,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,435.60 : 479,997.30 = 162,752.90 : x
  2. Step 2: Convert to fraction form
    320,435.60/479,997.30 = 162,752.90/x
  3. Step 3: Cross multiply
    320,435.60x = 479,997.30 × 162,752.90
  4. Step 4: Simplify right side
    320,435.60x = 78,120,952,567.17
  5. Step 5: Solve for x
    x = 78,120,952,567.17/320,435.60
  6. Step 6: Final answer
    x = 243,796.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.